Improvement in railroad-car ventilators



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GEORGE B. ARMSTRONG, OF CHICAGO, ILLINOIS, AND GEORGE E. MoLELLAN, OFWASHINGTON, DISTRICT OF COLUMBIA.

Letters Patent No. 110,416, dated December 27, 1870.

IMPROVEMENT IN RAILROAD-CAR VENTILAT ORS.

The Schedule referred to in these Letters Patent and making part of thename.

We, Gnonen B. Amrs'rnoso, of Chicago, in the county of Cook and State ofIllinois, and GEORGE E. MCLELLAN, of the city of Washington, in theDistrict of Columbia, have invented a new Dust-Guard and Fan for.railway travelers, of which the following is a description.

It is well known that, by fixing in front ot'an open window of arailroad-car a screen projecting from the car, and at right angles withit, the screen not only acts as a shield, to prevent the dust andcinders from entering the window, but, when the car is in motion,creates a' vacuum behind the screen, which causes the air to rush out ofthe car. fanning the person who sits in the draught.

The object of our invention is to provide a screen which shall operatein this manner, and which shall be so small that it may be carried inthe pocket, and so cheap that every traveler may be able to buy one.

In the accompanying drawing- Figure 1 is the guard ready to be applied.

Figure 2 is a part of a railway-car with two of our guards in place whenin use.

' Figure 3 is a horizontal section of arm B.

Figures 4 and 5 are vertical sections through the middle of both endsofv rod A, at right angles with the side of the rod, as shown in fig. 1.

In all A is rod, supporting arms B B B.

A A A are holes in A, to receive 1) b b.

a is a-line of division between the two parts of A.

B B B are arms to project from rod A, and to be connected with it byscrews b I) b, or otherwise.

I) b I) are screwsin the ends of arms B B B.

O is slotin arm B.

I) is flexible matclial forming screen.

The following is a description of the manner of making and using ourinvention.

,WVe make the red A of wood, and of convenient length, say fourteeninches, and make the ends serrated, or cover them with India rubber, orinsert in them two or more projecting points, as represented in thedrawing.

In one of the sides we make two or more holes to receive screws.

We then make two or more arms, B B B, of woodor metal,.and of convenientlength, say seven inches each, and in each of them make a longitudinalslot, I

as represented at 0, although this is not necessary.

Each of these arms ends in a screw.

Then it is desired to use the guard, the arms are attached to the rod Aby inserting the screws in the hole. provided for them in such a mannerthat the slots shall be in a line with the length of the rod A, We thentake a piece of paper or cloth, or other flexible material, and insertit in the slots, as represented, and the apparatus is complete.

Opening the window of the car, we place the'rod A under it, withthe-arms projecting from the car, and at right angles with it, asrepresented in fig. 2, and draw the window down, so that the points orserrated ends of the rod penetrate it and the'base of the window-frameslightly, or so that the frame and the sash press against the Indiarubber, if that be used, holding the guard securely in position.

\Vhen its use is no longer required, the window is sligb tly raised, soas to detach it, and it is taken down, the paper or other tlcxiblematerial removed,thc arms 'nnscrewed, and all may be put in the pocket.

For convenience, the rod A may be made in two pieces, which maybeconnected by tenon and mortise, by screw, by hinge, or in any convenientmanner. Instead of attaching the flexible material by inserting it inslots, it may be provided with loops, rings or other arrangements forsliding it over the arms, and the arms may be connected with the rod Aby hinges or in any other manner.

\Vejdo not confine ourselves to any particular method of making theattachment in either case.

What we claim as our invention, and desire to scc-ure by Letters Patent,is-

A dust-guard and fan for railway travelers, consisting of the' rod A,two or more arms B B B, and flexible material D, combined and operatingsubstantially in the'manner and for the purposes herein described andset forth.

G. B. ARMSTRONG. GEO. 1*. MoLELLAN. \Vitnesses A. S. PRATT, FRED. W.PRATT.

